Matthew Levendusky is currently associate professor and director of graduate studies in the Department of Political Science at the University of Pennsylvania. He was previously an assistant professor of Political Science at Penn (2007-2013), and a postdoctoral research associate at the Center for the Study of American Politics at Yale University (2006-2007). He obtained his Ph.D. from Stanford University in 2006, and his BA (with highest honors) from The Pennsylvania State University in 2001. In 2014, he served as a decision desk analyst for NBC News. 

He is the author of The Partisan Sort (University of Chicago Press, 2009) and How Partisan Media Polarize America (University of Chicago Press, 2013). Beginning with the 15th edition, he is a co-author of American Government: Institutions and Policies (Cengage Learning; with James Q. Wilson, John J. DiIulio, Jr., and Meena Bose). His work has also appeared in the American Journal of Political Science, Journal of Politics, Public Opinion Quarterly, and a variety of other outlets in political science. His research focuses on understanding how institutions and elites influence the political behavior of ordinary citizens, including studies of mass polarization, the effects of partisan media, and various other topics.